MULTIPLE CHOICE 1. The nurse is teaching a patient how a medication works to treat an illness. To do this, the nurse will rely on knowledge of: a. clinical pharmacology. b. drug efficacy. c. pharmacokinetics. d. pharmacotherapeutics. ANS: D Pharmacotherapeutics is the study of the use of drugs to diagnose, treat, and prevent conditions. Clinical pharmacology is concerned with all aspects of drug–human interactions. Drug efficacy measures the extent to which a given drug causes an int...